git: Check push config before falling back to branch remote (#41700)

Closes #26649

Release Notes:

- Improved git support for remotes handling. Git will now check pushRemote and pushDefault configurations before
falling back to branch remote.

---------

Co-authored-by: Jakub Konka <kubkon@jakubkonka.com>

crates/project/src/git_store.rs

@@ -2096,10 +2096,11 @@ impl GitStore {
         let repository_handle = Self::repository_for_request(&this, repository_id, &mut cx)?;
 
         let branch_name = envelope.payload.branch_name;
+        let is_push = envelope.payload.is_push;
 
         let remotes = repository_handle
             .update(&mut cx, |repository_handle, _| {
-                repository_handle.get_remotes(branch_name)
+                repository_handle.get_remotes(branch_name, is_push)
             })?
             .await??;
 
@@ -4737,12 +4738,26 @@ impl Repository {
     pub fn get_remotes(
         &mut self,
         branch_name: Option<String>,
+        is_push: bool,
     ) -> oneshot::Receiver<Result<Vec<Remote>>> {
         let id = self.id;
         self.send_job(None, move |repo, _cx| async move {
             match repo {
                 RepositoryState::Local(LocalRepositoryState { backend, .. }) => {
-                    backend.get_remotes(branch_name).await
+                    let remote = if let Some(branch_name) = branch_name {
+                        if is_push {
+                            backend.get_push_remote(branch_name).await?
+                        } else {
+                            backend.get_branch_remote(branch_name).await?
+                        }
+                    } else {
+                        None
+                    };
+
+                    match remote {
+                        Some(remote) => Ok(vec![remote]),
+                        None => backend.get_all_remotes().await,
+                    }
                 }
                 RepositoryState::Remote(RemoteRepositoryState { project_id, client }) => {
                     let response = client
@@ -4750,6 +4765,7 @@ impl Repository {
                             project_id: project_id.0,
                             repository_id: id.to_proto(),
                             branch_name,
+                            is_push,
                         })
                         .await?;